Statistics Irkutsk International Airport 2019-2023

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Irkutsk International Airport (UIII) between 2019 and 2023.

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VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	66.5	67	66	56	87	69
February	74.7	68	77	77	82	81
March	89.6	91	91	93	86	83
April	91.5	91	94	92	94	95
May	88.6	88	98	81	94	90
June	86.1	87	86	77	92	80
July	79.7	85	82	78	84	65
August	75.3	82	93	52	68	76
September	76.8	72	90	78	68	76
October	83.3	88	84	82	80	88
November	71.7		68	84	67	71
December	58.0		62	71	57	65
Average	80.3	82.6	84.8	77.0	81.0	78.9

10th best VFR conditions of Russia

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:

Visibility: 8 km or more
Ceiling: 3,000 ft or more

Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	82.3	75	85	74	93	89
February	87.9	86	90	87	90	94
March	94.6	95	95	96	91	92
April	96.4	93	98	97	98	98
May	96.0	94	100	94	99	97
June	95.6	96	92	92	100	93
July	89.5	90	90	90	93	79
August	85.9	88	96	68	78	88
September	87.1	79	96	85	82	89
October	92.2	95	94	91	89	97
November	84.2		79	91	81	84
December	77.6		81	86	71	81
Average	90.1	89.5	92.4	87.7	89.6	90.2

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:

Visibility: 5 km or more
Ceiling: 1,000 ft or more

Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	-13.2	-14	-11	-16	-11	-10
February	-9.1	-7	-9	-10	-7	-11
March	1.8	3	-1	1	2	3
April	10.2	6	10	8	14	11
May	16.8	15	21	13	18	16
June	23.2	23	23	21	23	23
July	24.2	25	23	24	25	24
August	22.0	24	21	22	21	22
September	15.5	17	16	14	16	17
October	8.2	11	7	9	6	8
November	-4.2		-4	-1	-2	-7
December	-12.0		-13	-10	-14	-10
Average	7.6	10.3	7.5	6.2	7.7	7.3

61st highest temperature of Russia

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	-24.8	-25	-21	-25	-20	-22
February	-23.8	-21	-23	-23	-20	-25
March	-12.6	-11	-14	-12	-10	-9
April	-3.2	-7	-3	-3	-1	-2
May	3.2	2	4	3	4	2
June	9.8	10	10	9	10	10
July	12.8	14	12	12	14	14
August	10.7	12	8	11	12	10
September	3.7	5	3	3	4	5
October	-4.1	-2	-5	-4	-5	-5
November	-15.4		-15	-12	-12	-17
December	-22.2		-22	-21	-24	-19
Average	-5.6	-3.7	-5.2	-6.8	-4.0	-5.3

10th lowest temperature of Russia

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	22.0	23	20	38	6	17
February	14.1	20	13	14	9	4
March	10.7	11	10	7	14	15
April	5.2	10	5	4	2	4
May	7.2	8	2	12	4	6
June	6.5	8	5	12	4	8
July	9.1	8	9	10	7	14
August	9.5	12	4	12	15	8
September	12.1	12	8	11	19	10
October	7.7	7	7	6	11	7
November	18.1		20	10	23	14
December	27.8		34	18	16	27
Average	11.1	11.0	9.4	11.8	10.2	10.5

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month	Average	2023	2022	2021	2020	2019
January	4.9	5	3	6	6	5
February	4.9	4	5	7	4	5
March	7.0	8	6	7	8	7
April	8.6	9	8	9	8	9
May	9.2	9	9	10	9	10
June	7.2	8	6	8	7	7
July	6.6	6	7	6	7	7
August	6.3	6	6	7	7	6
September	7.1	6	7	7	7	7
October	6.7	7	7	6	7	7
November	5.8		5	6	6	6
December	4.8		5	4	4	5
Average	6.8	6.8	6.4	7.1	6.8	6.9

61st highest wind speed of Russia

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2023	2022	2021	2020	2019
January	300°	137°	320°	147°	181°
February	234°	252°	278°	178°	221°
March	304°	307°	269°	302°	298°
April	293°	306°	299°	282°	260°
May	287°	303°	304°	306°	295°
June	291°	255°	287°	262°	251°
July	286°	297°	236°	273°	286°
August	237°	302°	294°	283°	233°
September	297°	264°	289°	282°	270°
October	221°	286°	274°	276°	299°
November		331°	174°	280°	320°
December		314°	019°	334°	327°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.